Pipe facing tool



April 18, 1933.

w. M. NECKERMAN PIPE FACING TOOL Filed July 25, 1950 umrao mm, arr-jar err-Ice I. non-m1, or Youxes'rown, onro, .essmnon re We mm.

oonrom'rror, or xouxes'rowx, 01:10, a CORPORATION 01-.

' r12: meme moor.

- cutters beheld rigidly .of the pipe in one line head is Application lied m 25,

.My invention relates to a tool and mechanism for facing the ends of pipe after it has bcencuttolengths.

For convenience in manipulation and s d e thata mac me pipe be readily adof o ation it'is desirab for acin the ends of justable or different sizes of pipe. .It is also desirable that the cutters employed be easily removable for replacement and shar ening. It is'essential, urthermore, that t e by the machine when m o rative position.

. I ave invented a p'i facing device which is characterized by al of the foregoing desirable features and, in addition, serves to face both the inner wall and the outer wall I operation. This device materially reduces the amount of timeand labor formerly consumed in the pipe facing gperation, and saves a large amount of bane 'accompan g drawing illustrates a present referred d mbodiment of the inven- -tion, alt ou h other forms than that shown will probab y oecu'rto those skilled in the art. The drawing, merely as illustration, and not as upon the scope of the invention.

In the drawin F" re 1"is a ront'elevation of one form of a ead for facing machines;

Figure 2 is a sectional view thereof on the 1-H of Figure 1; and I Figure 3 is a'sectional detail view taken on the line III-III of Figure 1.' a

,, Referring in detail to the drawing, a rotary provided with a face plate 11.

a limitation The head 10 b any suitab e power mechanism. The plate 11 is a single casting, andis secured to the'head 10 by olts 12 and nuts 13. Lugs 11a projecting from the back of the plate fit into correspondingly-shaped recesses 1n the plate thereto. The plate 11 has radial slots 14 formed therein. One side of each slot is undercut at 15-. A gib 16 overlies the other edge of the slot to hold a slide block 17 reciprocably in each slot 14. Screws 16a secure the on the plate 11.

of the screw 23. is squared for.

therefore, is intended be supported on and driven 1980. Serial R0. 470,832"

cutter and are suitably shouldered at 21 to e ends ofat "18 and acprovide proper clearance and lateral support for the cutter.-

A In .22 block 1% and operation with a screw 23. The screw 23 has an integral collar 24 and traverses a sleeve 25 fixed to a stud 26 carried b A lock collar 27 is secured to t the sleeve 25 by a set screw '28.

the plate 11. e screw above cooperation with a socket wrench. y

The cutter 19 has a beveled ed e 30 for facing the outer wall of a pipe, suc as that shown at 31, which may be sup rted on any suitable means. In order to ace the inner wall of the pipe 31, I provide some of the slots 14in the which differ s 'ghtly in construction from those shown at17. The blocks 17a are recessed from the outer end at 18a instead of from the inner end as in the case of the b1ocks' 1'7. Cutters 32, having an arcuate cutting edge 33 for cooperating with the in-. ner wall. of the pi e 31, are secured in the recesses in the bloc 20a. vThe means for adjusting the blocks 17a-is identical with'that shown and described for adjusting the'block 17, as

17a by clamping studs,

apparent in Figure 2, the cutprojects rearwardly from the i is threaded internally 'for' co-.

The end 29 late 11 with slide blocks 17a 19 are likewise secured against outward move- 1 ment by the blocks 17. Substantial radial support is thus afiorded for both the internal :and external facing cutters. provides a' device which is The invention readily adjustable for facing different sizes of pipe. In addition, 'the cutters are firmlysupported closely adjacent their a cutting ed es, at the same time being readil removab e for'shar ening orre'placement. advan e o faces b0 the insideand outside of the 'pi A great i the invention is the fact that it easily removed by taking off the gib '16, in case it is desired to change the relative number of inside and outside cutters, without in terference by the screw 23 or the sleeve 25.

. 5 Although I have illustrated and described but a single preferred embodiment of the invention, it is obvious that numerous changes in this embodiment may be made within the scope of the following claims, without departing from the spirit of the invention.

' IcIaim:

1. In a pipe-finishing'device, a rotary head,

radial slots therein, tool blocks reciprocable n v insaidslgts, radial recesses in said blocks extending to tlie inner iid oiily of some blocks and to the outer ends only of others, and cutting tools seated in said recesses and engaging the 'closed' ends thereof whereby the tools are firmly supported against radial displacement.

' v 2. In a pipe finishing device, a rotary head having radial slots formed therein, tool retaining blockss'lidably mounted in the slots, a plurality of cutters for simultaneously act ing on the end of the pipe, certain of said cutters adapted to engage the inner wall of thepipe and the other of said cutters adapted to engage theouter wall of the pipe, said blocks having recesses with a closed ends formed therein and adapted to receive said cutters, and bearing surfaces adjacent the closed end of said tool "receivingslots against which the tool bears thereby presenting a firm support for-the tool during the cutting'operation.

In testimony whereof I have hereunto set my hand. I r

' WILLIAM M. NEGKERMAN. 

